The dubious performance (failure) of genetically engineered Bt cotton, officially India’s only GM crop, should serve as a warning as the push within the country to adopt GM across a wide range of food crops continues. This article provides an outline of some key reports and papers that have appeared in the last few years on Bt cotton in India.
In a paper that appeared in December 2018 in the journal Current Science, P.C. Kesavan and M.S. Swaminathan cited research findings to support the view that Bt insecticidal cotton has been a failure in India and has not provided livelihood security for mainly resource-poor, small and marginal farmers. This paper was not just important because of its content but also because M.S. Swaminathan is considered to be the father of the Green Revolution in India.
The two authors provided evidence that indicates Bt crops are unsustainable and have not decreased the need for toxic chemical pesticides, the reason for these GM crops in the first place.
The authors cite the views of Dr K.R. Kranthi, former Director of the Central Institute for Cotton Research in Nagpur. Based on his research, he concluded in December 2016:
Bt-cotton plus higher fertilizers plus increased irrigation also received a protective cover from the seed treatment of neonicotinoid insecticides such as imidacloprid, without which majority of the Bt-cotton hybrids which were susceptible to sucking pests would have yielded far less. It can safely be said…